Keystones — Cornerstone
Five GCSE retrieval questions · 15 March 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 49 + 89
Answer: 49 + 89 = 138 -
2. Algebra
Expand: 2(4x + 4)
Answer: 8x + 8 -
3. Geometry
Opposite = 15cm, hypotenuse = 17.3cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify: 10:4:4
Answer: 5:2:2 -
5. Statistics
Find the mean of: 10, 9, 4
Answer: 7.6666666666667